20597625

素因数分解:

$3^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{359}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 19837575

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 359, 375, 425, 459, 675, 765, 1077, 1125, 1275, 1795, 2125, 2295, 3231, 3375, 3825, 5385, 6103, 6375, 8975, 9693, 11475, 16155, 18309, 19125, 26925, 30515, 44875, 48465, 54927, 57375, 80775, 91545, 134625, 152575, 164781, 242325, 274635, 403875, 457725, 762875, 823905, 1211625, 1373175, 2288625, 4119525, 6865875, 20597625]

約数ペア:

[(1, 20597625), (3, 6865875), (5, 4119525), (9, 2288625), (15, 1373175), (17, 1211625), (25, 823905), (27, 762875), (45, 457725), (51, 403875), (75, 274635), (85, 242325), (125, 164781), (135, 152575), (153, 134625), (225, 91545), (255, 80775), (359, 57375), (375, 54927), (425, 48465), (459, 44875), (675, 30515), (765, 26925), (1077, 19125), (1125, 18309), (1275, 16155), (1795, 11475), (2125, 9693), (2295, 8975), (3231, 6375), (3375, 6103), (3825, 5385)]